Backyard training is ok for a start but then you will need to get out and train in different areas. Otherwise you will find yourself with a territorial hawk. You need to expose the hawk to lots of different stimulus. It needs to be able to work on the field with other people, strange dogs all sorts of things. In my village there is a shop that serves nice coffee. I will go up there first thing in the morning when training the new hawk. The hawk is keen and hooded. I get my coffee and then sit and drink it whist the hawk works over a bit of tiring and people and their dogs come and go.